toasters August 2018

toasters@lists.teaparty.net

16 participants
12 discussions

Retrieving lock status in cDOT (CIFS/NFSv4)
by Jacek 08 Aug '18

08 Aug '18

We implemented simple file lock monitoring on our 7mode filers: A script runs each 5 minutes retrieving output from lock status -n command from all vfilers. For example: # ssh [...] vfiler run sngnas100703 lock status -n CIFS: 0 share locks, 0 byte locks [...] NFSV4: 29 share locks, 5 byte locks [...] Total Locks: 29 share locks, 5 byte locks [...] We would like to implement equivalent solution for cDOT but there is no command returning lock status summary (all we need is to count share and byte locks per protocol: CIFS and NFSv4). cDOT documentation and NetApp support suggest using command: vserver locks show But: Command warns that it may affect system performance and we will query clusters each couple of minutes. The script will have to retrieve huge output, parse it and calculate required totals. What is the best and non-intrusive way to retrieve locks status? (other commands? API?) Best regards, Jacek Nogala

2 2

wafl.vol.walloc.rsv.failmount
by Mike Thompson 08 Aug '18

08 Aug '18

Looks like we filled up an aggregate that we dump backups into. Filer bounced itself, to take the aggregate offline, which is an interesting way to deal with the situation: Aug 6 01:39:46 filer1b [filer1b:wafl.vol.walloc.rsv.offline:error]: Volume backups free space reserve is critically low. Rebooting system to take volume offline. Please contact support for assistance. Anyway, the aggr is in restricted state now, and when I try to online it, event log says: 8/7/2018 08:43:46 filer1b WARNING wafl.vol.walloc.rsv.failmount: Failing mount of volume backups. Free space reserve is too low. Please contact support for assistance. I'd really like to not have to blow this aggr away and re-run all these backups. Presumably there's a way to get this back online. This is on cdot 8.2.4p4 Any ideas?

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toasters August 2018